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Questions and Answers
What score is awarded for a perfect atemi that is powerful, in good balance, and at a good distance?
What score is awarded for a perfect atemi that is powerful, in good balance, and at a good distance?
What is the maximum length of the stick that athletes can use in their presentation?
What is the maximum length of the stick that athletes can use in their presentation?
In the scoring for Series C, what is awarded if Tori demonstrates a weak pre-attack?
In the scoring for Series C, what is awarded if Tori demonstrates a weak pre-attack?
What outcome results in a score of 0 in the closing part of scoring?
What outcome results in a score of 0 in the closing part of scoring?
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What type of clothing must female athletes wear under their gi jacket?
What type of clothing must female athletes wear under their gi jacket?
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What is the time limit given to competitors to conform after being informed of the rules?
What is the time limit given to competitors to conform after being informed of the rules?
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What is the score for Tori if he/she performs a perfect throw but the lock/choke has weak control?
What is the score for Tori if he/she performs a perfect throw but the lock/choke has weak control?
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What happens if competitors do not abide by the competition dressing rules?
What happens if competitors do not abide by the competition dressing rules?
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What must Tori do to score a 3 in the defense category of scoring Series C?
What must Tori do to score a 3 in the defense category of scoring Series C?
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What type of materials must protective gear be made from?
What type of materials must protective gear be made from?
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What score does Tori receive if they fail to perform any block or move with Tai Sabaki?
What score does Tori receive if they fail to perform any block or move with Tai Sabaki?
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Which of the following is allowed to be worn under the gi?
Which of the following is allowed to be worn under the gi?
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What is the maximum score for Tori if Uke jumps without any effort from Tori during a takedown?
What is the maximum score for Tori if Uke jumps without any effort from Tori during a takedown?
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What situation results in a score of 1 regarding the weapon's position?
What situation results in a score of 1 regarding the weapon's position?
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What color belts do all couples wear during the qualification phase?
What color belts do all couples wear during the qualification phase?
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What equipment must be used if athletes are presenting with weapons?
What equipment must be used if athletes are presenting with weapons?
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What must all actions executed in a demonstration be characterized by?
What must all actions executed in a demonstration be characterized by?
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What is required of Tori during the attack sequence?
What is required of Tori during the attack sequence?
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Which aspect is essential for effective control throughout the performance?
Which aspect is essential for effective control throughout the performance?
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What factor should be considered regarding the speed of execution?
What factor should be considered regarding the speed of execution?
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What type of actions does Series A scoring focus on?
What type of actions does Series A scoring focus on?
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What score is given for a perfect first strike and breaking the opponent's balance?
What score is given for a perfect first strike and breaking the opponent's balance?
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Which score corresponds to a weak strike or medium balance breaking during defense?
Which score corresponds to a weak strike or medium balance breaking during defense?
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What scoring designation is given for a wrong attack or missing pre-attack?
What scoring designation is given for a wrong attack or missing pre-attack?
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What happens if there is a tie during the face-off in the medal phase?
What happens if there is a tie during the face-off in the medal phase?
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How many couples qualify for Round 4 under normal circumstances?
How many couples qualify for Round 4 under normal circumstances?
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What is the procedure if there is a tie among three couples in 4th place?
What is the procedure if there is a tie among three couples in 4th place?
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What occurs if a tie involves more than three couples in the 4th place?
What occurs if a tie involves more than three couples in the 4th place?
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How will couples perform in case of a tie match?
How will couples perform in case of a tie match?
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What will happen to couples that do not qualify for the Medal Phase?
What will happen to couples that do not qualify for the Medal Phase?
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What happens to the losers of Round 4?
What happens to the losers of Round 4?
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In a face-off, what is the order of attack series if there is a tie?
In a face-off, what is the order of attack series if there is a tie?
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What happens if a weapon is hit or cuts a Tori during a sequence?
What happens if a weapon is hit or cuts a Tori during a sequence?
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How is variety in performance primarily scored?
How is variety in performance primarily scored?
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What is considered a wrong attack?
What is considered a wrong attack?
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What should be done if the software for scoring a wrong attack is unavailable?
What should be done if the software for scoring a wrong attack is unavailable?
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Which scoring is given for the same technique being used in three or more attacks?
Which scoring is given for the same technique being used in three or more attacks?
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In part 4, which of the following techniques is not counted as a unique technique for variety?
In part 4, which of the following techniques is not counted as a unique technique for variety?
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How can a throw variation be considered in variety scoring?
How can a throw variation be considered in variety scoring?
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What is the consequence of a couple performing a wrong attack during the competition?
What is the consequence of a couple performing a wrong attack during the competition?
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What must be agreed upon by the majority of the referee team before issuing a penalty?
What must be agreed upon by the majority of the referee team before issuing a penalty?
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What is the starting deduction of points when a penalty is given?
What is the starting deduction of points when a penalty is given?
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In which rounds do the qualification attacks consist of three specific series?
In which rounds do the qualification attacks consist of three specific series?
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Which series of attacks will be executed in the order of A to C and numeric order from 1 to 4?
Which series of attacks will be executed in the order of A to C and numeric order from 1 to 4?
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What penalty can be given for arriving late at the tatami?
What penalty can be given for arriving late at the tatami?
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How many attacks are performed during the Youth and Children classes' qualification phase?
How many attacks are performed during the Youth and Children classes' qualification phase?
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In the Final Round, which series of attacks are included?
In the Final Round, which series of attacks are included?
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What type of penalty is executed at the start of the competition?
What type of penalty is executed at the start of the competition?
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Study Notes
Ju-Jitsu Duo Rule Book
- The handbook contains rules for Ju-Jitsu Duo.
- It was approved in March 2024.
- Copyright belongs to the Ju-Jitsu International Federation (JJIF).
- Only the English version is official.
- The document is version 4.1.
Competition Sections
- Section 01: Competition Dressing and Personal Requirements (page 5)
- Section 02: Categories and Series (page 7)
- Section 03: Referees, Secretariat and Coaches (page 9)
- Section 04: Course of the Match (page 12)
- Section 05: Points and Judging (page 16)
- Section 06: Penalties (page 22)
- Section 07: Attacks to Perform (page 24)
- Section 09: Situations Not Covered by the Rules (page 28)
Appendices
- Appendix: Further Rules and Clarifications (page 30)
- Appendix I: Attacks in the Duo-system (page 31)
- Appendix II: Referee Signs (page 34)
General Information
- The JJIF-Duo System focuses on defensive strategies from two athletes on the same team.
- Attacks are categorized into 3 series of 4 attacks each (gripping, punches/kicks, and weapon).
- Each attack is preceded by a pre-attack.
- The defender presents a counter-attack with lock/submission/controlling techniques.
- Objective of competition is to show technical and realistic defence.
- Specific guidelines, adaptations, organization/format are in the JJIF Sporting Code and are valid in case of a conflict.
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Description
Explore the essential regulations outlined in the Ju-Jitsu Duo Rule Book. This quiz covers competition requirements, category definitions, and judging criteria as approved by the Ju-Jitsu International Federation. Test your knowledge of the rules that govern this dynamic sporting event.